Cheap flights from Boston to Tokyo from $635

The month of January is, on average, the cheapest month to fly to Tokyo Narita Airport from Boston, with most prices found around $1,039. If you are unable to visit Tokyo Narita Airport during the month of January, then departing from Boston during the month September is also very affordable. Most momondo users find prices during this month for around $1,115.

On average, the least expensive day to fly to Tokyo Narita Airport from Boston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,330. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,914. These prices are subject to change though, so be sure to set up a Price Alert for flights to Tokyo Narita Airport.

In the morning is the cheapest time of day to fly from Boston to Tokyo Narita Airport when you can find flight prices for as low as $1,346. Flying to Tokyo Narita Airport in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $1,705. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Boston Logan Intl to Tokyo Narita for the best Boston Logan Intl - Tokyo Narita flight prices

You are more likely to see cheaper flights to Tokyo Narita Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Tokyo Narita Airport for around $1,430 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tokyo Narita Airport from Boston for as low as $1,092 on momondo.

There are 3 cabin classes available to choose from on Boston to Tokyo Narita Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 12% on your flight if you consider stops on a Boston to Tokyo Narita Airport flight.

As of July 2026, prices for Boston to Tokyo Narita Airport flights are approximately 25% cheaper when compared to flights at the same time last year.

United Airlines, Japan Airlines, and WestJet are the most popular carriers operating from Boston Logan Intl to Tokyo Narita

Air Canada, Japan Airlines and United Airlines are the top three most popular airlines that fly to Tokyo Narita Airport from Boston according to our data. Air Canada is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Tokyo Narita Airport. Keep in mind that there are 8 different airlines that fly to Tokyo Narita Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Boston and Tokyo have experienced a delay on any given week. The average delay length over the past 12 months has been 122 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, Japan Airlines have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

Calgary (YYC) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Flights via Montreal (YUL) offer the lowest average round-trip price of $784.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 16h 15m.

Montreal (YUL) has the shortest average layover time for this route: 1h 53m.

4 flights are operational daily from Boston to Tokyo Narita Airport as of July 2026. The most popular departure time for this route is 1:00PM, with 100% of flights per day taking off in the afternoon.

28 flights are operational weekly from Boston to Tokyo Narita Airport as of July 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.